Scherzer hasn't been getting much attention this offseason. He's not that much better than Lester, and costs the draft pick, and probably an extra year.
Scherzer isn't a sexy signing. He isn't a guy who has been known in the league for years, he's physically unattractive, and doesn't sound like he has any intangible value like leadership or playoff awards. Hell, most fans probably can't pronounce his name, and he doesn't have any fun nicknames that I am aware of. I don't see him being a guy that young teams like the Cubs will want to build their franchise around -- he's a complimentary piece on a team that already has starpower.
That being said, he'll get his 150-170 million, but not that much more than Lester.